21764120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4091}}^1$

素因数の和:4128

約数の個数: 64

約数和(自身を含む): 58924800

約数和(自身を除く): 37160680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 4091, 5320, 8182, 16364, 20455, 28637, 32728, 40910, 57274, 77729, 81820, 114548, 143185, 155458, 163640, 229096, 286370, 310916, 388645, 544103, 572740, 621832, 777290, 1088206, 1145480, 1554580, 2176412, 2720515, 3109160, 4352824, 5441030, 10882060, 21764120]

約数ペア:

[(1, 21764120), (2, 10882060), (4, 5441030), (5, 4352824), (7, 3109160), (8, 2720515), (10, 2176412), (14, 1554580), (19, 1145480), (20, 1088206), (28, 777290), (35, 621832), (38, 572740), (40, 544103), (56, 388645), (70, 310916), (76, 286370), (95, 229096), (133, 163640), (140, 155458), (152, 143185), (190, 114548), (266, 81820), (280, 77729), (380, 57274), (532, 40910), (665, 32728), (760, 28637), (1064, 20455), (1330, 16364), (2660, 8182), (4091, 5320)]